Carbon emissions
CANADA recently announced it was pulling out of the Kyoto protocol, a treaty on climate change, the first phase of which expires next year. By way of explanation, its environment minister pointed out that the protocol does not cover the world's largest two emitters. Indeed, America, which did not ratify the agreement, and China, which as a developing country is exempt, are responsible for 41% of the world’s CO2 emissions. Between 1990 and 2009, China’s emissions increased by over 200% and America’s by 6.7%. But Canada's carbon emissions have also increased, by over 20% in the same period, far from its Kyoto target of a 6% reduction.


http://www.economist.com/blogs/graphicdetail/2011/12/carbon-emissions